Alert archive / Mississippi / Wind Advisories in 2011

Wind Advisory 8, NWS Jackson, MS

April 11, 201113 counties in Mississippi; East Carroll Parish, Morehouse Parish, West Carroll Parish, Louisiana; Ashley County, Chicot County, Arkansas

NWS Jackson, MS issued this wind advisory at Apr 11, 2011, 4:43 AM CDT for 13 counties in Mississippi; East Carroll Parish, Morehouse Parish, West Carroll Parish, Louisiana; Ashley County, Chicot County, Arkansas. It took effect at Apr 11, 2011, 9:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Apr 11, 2011, 4:43 AM CDT (09:43 UTC)
In effect from
Apr 11, 2011, 9:00 AM CDT
Expired
Apr 11, 2011, 4:00 PM CDT
In force
7 hr
Issued by
NWS Jackson, MS

Counties Ashley County, AR, Chicot County, AR, East Carroll Parish, LA, Morehouse Parish, LA, West Carroll Parish, LA, Bolivar County, MS, Carroll County, MS, Grenada County, MS, Holmes County, MS, Humphreys County, MS, Issaquena County, MS, Leflore County, MS, Montgomery County, MS, Sharkey County, MS, Sunflower County, MS, Washington County, MS, Webster County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 122 km from the middle of the area, began a volume at 09:48 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 9.7 hours before the alert went out and 114 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 2011-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 596 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2011-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
596 J/kg
Mixed-layer CIN
-242 J/kg
Mixed-layer LCL
1555 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

600 
WWUS74 KJAN 110943
NPWJAN

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSON MS
443 AM CDT MON APR 11 2011

...WIND ADVISORY FOR PORTIONS OF THE DELTA REGION TODAY...

.STRONG GUSTY WINDS WILL DEVELOP THIS MORNING IN ADVANCE OF A COLD
FRONT THAT WILL MOVE ACROSS THE AREA THIS AFTERNOON. LIGHTER WINDS ARE
EXPECTED IN THE WAKE OF THE COLD FRONT.

ARZ074-075-LAZ007>009-MSZ018-019-025>029-034>036-040>042-111745-
/O.NEW.KJAN.WI.Y.0008.110411T1400Z-110411T2100Z/
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-BOLIVAR-
SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-WASHINGTON-
HUMPHREYS-HOLMES-ISSAQUENA-SHARKEY-YAZOO-
INCLUDING THE CITIES OF...CROSSETT...NORTH CROSSETT...HAMBURG...
WEST CROSSETT...DERMOTT...LAKE VILLAGE...EUDORA...BASTROP...
OAK GROVE...EPPS...LAKE PROVIDENCE...CLEVELAND...INDIANOLA...
RULEVILLE...GREENWOOD...GRENADA...VAIDEN...NORTH CARROLLTON...
CARROLLTON...WINONA...EUPORA...MABEN...MATHISTON...GREENVILLE...
BELZONI...ISOLA...DURANT...TCHULA...LEXINGTON...PICKENS...
GOODMAN...MAYERSVILLE...ROLLING FORK...ANGUILLA...YAZOO CITY
443 AM CDT MON APR 11 2011

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 4 PM CDT
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 4 PM CDT
THIS AFTERNOON. 


* TIMING: SOUTH TO SOUTHWEST WINDS WILL INCREASE AND BECOME GUSTY
  THIS MORNING AHEAD OF A COLD FRONT. THE WINDS WILL SHIFT TO THE
  WEST AND NORTHWEST BEHIND THE FRONT THIS AFTERNOON AND BECOME
  LIGHTER.

* WINDS: SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH ARE EXPECTED WITH
  OCCASIONAL WIND GUSTS OF 40 TO 45 MPH.

* IMPACTS: GUSTS OF 40 TO 45 MPH OCCASIONALLY BRING DOWN LARGE LIMBS
  AND ROTTED TREES CAUSING SERIOUS INJURY AND PROPERTY DAMAGE.
  VEHICLES TRAVELING IN EAST OR WEST DIRECTIONS WILL BE ESPECIALLY
  SUSCEPTIBLE TO STRONG CROSS WINDS THIS MORNING AND AFTERNOON. WATER
  CONDITIONS ON LARGER LAKES AND RIVERS WILL BECOME VERY ROUGH AS
  WELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

22
2 follow-up statements
054 
WWUS74 KJAN 111615 AAA
NPWJAN

URGENT - WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
1115 AM CDT MON APR 11 2011

...WIND ADVISORY CONTINUES FOR PORTIONS OF THE DELTA REGION
THROUGH THIS AFTERNOON...

.STRONG GUSTY WINDS WILL CONTINUE IN ADVANCE OF A COLD FRONT THAT
WILL MOVE ACROSS THE AREA THIS AFTERNOON. LIGHTER WINDS ARE EXPECTED
IN THE WAKE OF THE COLD FRONT.

ARZ074-075-LAZ007>009-MSZ018-019-025>029-034>036-040>042-112100-
/O.CON.KJAN.WI.Y.0008.000000T0000Z-110411T2100Z/
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-BOLIVAR-
SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-WASHINGTON-
HUMPHREYS-HOLMES-ISSAQUENA-SHARKEY-YAZOO-
INCLUDING THE CITIES OF...CROSSETT...NORTH CROSSETT...HAMBURG...
WEST CROSSETT...DERMOTT...LAKE VILLAGE...EUDORA...BASTROP...
OAK GROVE...EPPS...LAKE PROVIDENCE...CLEVELAND...INDIANOLA...
RULEVILLE...GREENWOOD...GRENADA...VAIDEN...NORTH CARROLLTON...
CARROLLTON...WINONA...EUPORA...MABEN...MATHISTON...GREENVILLE...
BELZONI...ISOLA...DURANT...TCHULA...LEXINGTON...PICKENS...
GOODMAN...MAYERSVILLE...ROLLING FORK...ANGUILLA...YAZOO CITY
1115 AM CDT MON APR 11 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON. 

* TIMING: SOUTH TO SOUTHWEST WINDS WILL INCREASE AND BECOME 
  GUSTY THIS MORNING AHEAD OF A COLD FRONT. THE WINDS WILL SHIFT 
  TO THE WEST AND NORTHWEST BEHIND THE FRONT THIS AFTERNOON AND 
  BECOME LIGHTER. 

* WINDS: SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH ARE EXPECTED 
  WITH OCCASIONAL WIND GUSTS OF 40 TO 45 MPH. 

* IMPACTS: GUSTS OF 40 TO 45 MPH OCCASIONALLY BRING DOWN LARGE 
  LIMBS AND ROTTED TREES CAUSING SERIOUS INJURY AND PROPERTY 
  DAMAGE. VEHICLES TRAVELING IN EAST OR WEST DIRECTIONS WILL BE 
  ESPECIALLY SUSCEPTIBLE TO STRONG CROSS WINDS THIS MORNING AND 
  AFTERNOON. WATER CONDITIONS ON LARGER LAKES AND RIVERS WILL 
  BECOME VERY ROUGH AS WELL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

22/DL
912 
WWUS74 KJAN 112054 AAA
NPWJAN

URGENT - WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE JACKSON MS
354 PM CDT MON APR 11 2011

...WIND ADVISORY WILL BE ALLOWED TO EXPIRE...

ARZ074-075-LAZ007>009-MSZ018-019-025>029-034>036-040>042-112200-
/O.EXP.KJAN.WI.Y.0008.000000T0000Z-110411T2100Z/
ASHLEY-CHICOT-MOREHOUSE-WEST CARROLL-EAST CARROLL-BOLIVAR-
SUNFLOWER-LEFLORE-GRENADA-CARROLL-MONTGOMERY-WEBSTER-WASHINGTON-
HUMPHREYS-HOLMES-ISSAQUENA-SHARKEY-YAZOO-
INCLUDING THE CITIES OF...CROSSETT...NORTH CROSSETT...HAMBURG...
WEST CROSSETT...DERMOTT...LAKE VILLAGE...EUDORA...BASTROP...
OAK GROVE...EPPS...LAKE PROVIDENCE...CLEVELAND...INDIANOLA...
RULEVILLE...GREENWOOD...GRENADA...VAIDEN...NORTH CARROLLTON...
CARROLLTON...WINONA...EUPORA...MABEN...MATHISTON...GREENVILLE...
BELZONI...ISOLA...DURANT...TCHULA...LEXINGTON...PICKENS...
GOODMAN...MAYERSVILLE...ROLLING FORK...ANGUILLA...YAZOO CITY
354 PM CDT MON APR 11 2011

...WIND ADVISORY WILL EXPIRE AT 4 PM CDT THIS AFTERNOON...

THE WIND ADVISORY WILL BE ALLOWED TO EXPIRE. GUSTY WINDS WILL
CONTINUE THROUGH THE EVENING HOURS BEHIND A COLD FRONT...HOWEVER
WINDS ARE EXPECTED TO REMAIN BELOW ADVISORY CRITERIA.

$$

DL

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 11, 1:26 PM CDTSpecial Weather StatementJANGrenada, Humphreys, Issaquena, Leflore, Sharkey, Sunflower and 1 more59 min
Apr 11, 2:41 PM CDTSpecial Weather StatementJANAttala, Carroll, Choctaw, Claiborne, Copiah, Franklin and 10 more59 min
Apr 11, 4:27 PM CDTSpecial Weather StatementJANCopiah, Leake, Neshoba, Newton, Rankin, Scott and 2 more58 min
Apr 11, 4:57 PM CDTSpecial Weather StatementJANLowndes, Noxubee43 min
Apr 11, 5:04 PM CDTSevere Thunderstorm WarningJANKemper, Neshoba, Noxubee, Winston41 min
Apr 11, 5:25 PM CDTSevere Thunderstorm WarningJANSimpson, Smith50 min
Apr 11, 5:36 PM CDTSevere Thunderstorm WarningJANNoxubee24 min
Apr 11, 5:54 PM CDTSevere Thunderstorm WarningJANClarke, Jasper, Lauderdale, Newton51 min
Apr 11, 6:35 PM CDTSevere Thunderstorm WarningJANClarke, Jasper, Jones40 min

Nearby

Wind Advisories in Mississippi, 2011Wind Advisories in Louisiana, 2011Wind Advisories in Arkansas, 2011Every wind advisory in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.